Porch-curtain-weaving machine.



, E. L. MOONEY & z. E. RUSSELL. PORCH CURTAIN WEAVlNG MACHINE.

APPLICATION man FEB. 15. 1915. LQQ LBQG, lfatented Nov. 14, 1916.

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PORCH CURTAIN WEAVING MACHINE.

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APPLICATION HLEDIEB. 15. 1915.

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MOONEY & z. E. RUSSELL. H CURTAIN WEAVING MACHINE.

Patented Nov. 14, 1916.

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E. L MOONEY & Z. E. RUSSELL.

PORCH CURTAIN WEAVING MACHINE.

APPLICATION FILED FEB. 15. ms.-

1,204,896. Patented Nov. 14:, 1916.7

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EDWARD L. MOONEY, OF MINNEAPOLIS, AND ZACI-IARY E. RUSSELL, OF SA'UK RAPIDS, MINNESOTA, ASSIGNORS TO CLYDE W. WARREN, 0F SAUK RAPIDS, MINNESOTA.

PORCH-OURTAIN-IVEAVING MACHINE.

Specification of Letters Patent.

Patented Nov. 14, 1916.

Application filed February 15, 1915. Serial No. 8,297.

T 0 all whom it may concern Be it known that we, EDWARD L. MooNEY, a citizen of the United States, residing at Minneapolis, in the county of Hennepin and hereby declare the following to be a full,

clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

Our invention has for its object to provide a machine for weaving or making our tains, shades, and similar articles which are made up of slats connected by flexible warp cords in such manner that they may be easily rolled up and unrolled.

Generally stated, the invention consists of the novel devices and combinations of devices hereinafter described and defined in the claims.

The invention is illustrated in the accompanying drawings wherein like characters indicate like parts throughout the several views.

Referring to the drawings: Figure 1 is a front elevation of the improved machine with some parts broken away; Fig. 2 is a side elevation of the improved machine as shown in Fig. 1; Fig. 3 is a plan view of the same with some parts removed; Fig. 4 is a detail view, on an enlarged scale, principally in transverse vertical section taken on the line 00 m on Fig. 1; Fig. 5 is a detail view in section taken on the line a m on Fig. 4; Fig. 6 is a detail view in section taken on the line :0 w on Fig. 4; Fig. 7 is a view in side elevation showing a portion of a porch shade; Fig. 8 is a view in transverse section taken on the line 00 m on Fig. 7; Fig. 9 is a detail in right side elevation showing an automatic slat trimming device and certain associated parts of the machine; and Fig. 10 is a detail in vertical section.

The frame of the machine illustrated is constructed from a pair of heavy, laterally spaced, vertically extended timbers 1, which are supported at their lower ends on base blocks 2. Upper and lower and intermediate horizontally extended tie bars 3, 4 and 5, respectively, are rigidly secured, at their ends, to the posts 1.

A pair of horizontally extended presser bars 6 and 7- are carried by the posts 1.

These presser bars are, as shown, preferably formed of I-beams arranged with their central webs extending in the same horizontal plane. The presser bar 6 is rigidly secured at its ends to the front of the posts 1 by bolts or other suitable means. Long guide rods 8, in the form of bolts, are passed through the posts 1 and through the upper flanges of the presser bars 6 and 7. The outer ends of 1 these guide rods 8 extend outward beyond the presser bar 7 and at their free ends are equipped with adjusting nuts 9 having screw-threaded engagement therewith. The presser bar 7 is mounted on the guide rods 8 for sliding movement toward and from the presser bar 6. Coiled springs 10 are mounted on the guide rods 8 and are compressed between the presser bar 6 and the nuts 9 and yieldingly press the presser bar 7 laterally toward the presser bar 6.

Guide bars 11 are rigidly secured to the inner vertical flanges of the presser bars 6 and 7 and project vertically above the same. There are a number of these guide bars 11, as best shown in Figs. 1, 4, and 6, and they are laterally spaced, one from the other, and preferably made half round in cross section, with their flatsides secured to the faces of adjacent I-beams and with their rounded surfaces exposed for engagement with the slats.

In the drawings, the window shade is shown as constructed from a multiplicity of long, thin, slats or strips of wood y placed edge to edge and connected by a multiplicity of pairs of warp cords In the machine illustrated, the slats y are fed by handendwise between the guide bars 11. Packer heads 12 are provided to force the last fed slat y into close engagement with the formed portion of the shade, and are held in this position while the warp cords y are alternated around the same. These packer heads 12 also feed the formedshade downward between the guide bars 11, by a step by step movement.

The packer heads 12 are bifurcated and their horizontally extendedprongs embrace i posts 1.

opposite pairs of guide bars 11 and are free to move vertlcally upward and downward thereon. Depending plungers 13 are rigidly secured, one to each packer head 12 and work verti ally through perforations 14 formed in the central webof the presser bar 6. At their lower ends, the plungers 13 are rigidly secured to the horizontal flange of a horizontally extended'angle bar 15. Guide rods 16 are rigidly secured to the'vertical flange of the angle bar 15 and work through vertically extended seats formed in the outer ends of a pair of arms 17 rigidly secured to the posts 1. shaft '18, having secured ateach end an upwardly projecting operating lever 19, is rotatively mounted in the lower ends of the 7 comprises a pair of reversely acting and alternating bell cranks, each'having a relatively short-arm 23 and a relatively long arm 24. The hubs of the bell cranks are loosely journaled on a horizontally extended shaft- 25 located directly above the guide bars 11 and secured in bearings 26 on the posts 1. The long arms 24, of each set, extend downward and 'normallyproject in opposite directions with their free ends working just above the presser bars 6 and 7.

Hereinafter, the long arms 24 will be re-.

ferred to as the warp cord guiding arms. Eyes 27 and 28 are formed in the free ends of the guide arms 24 and on their hubs, respectively. Through these eyes 27 and 28, the warp cords if are pulled under the action of the packing heads 12 operating on the slats y. The short arms 25, of each set,

, extend upward and in opposite directions,

as best shown in Figs. 2 and 4.

A rock shaft 29 extends parallel to and above the shaft 25 and is rotatively mounted in bearings 30 secured to the posts 1.

v Outwardly projecting short crank arms 31 are rigidly secured to the rock shaft 29 and their free ends are pivotally connected to the free ends of the arms 23 by means of links 32. Gomparatively long rearwardly projecting crank arms 33' are rigidly secured, one to each of the outwardly projecting ends of the rock shaft 29 and their free ends are pivotally connected to the short arms of a pair of operating bell'crank levers 34, by

a means of long links 35. The operating bell crank levers 34am loosely journaled, one on each end'of the rock shaft 18, between the posts 1 and the operating levers 19.

A horizontally extended rock Outwardly projecting crank arms Cooperating with each set of warp guiding arms 24, is a pair of slack take-up devices and a tension device. The slack takeup devices are in the form of substantially horizontally extended levers 36 intermediately pivoted to a horizontally extended shaft 37 supported in bearings 38 on the top of the tie bar 3. The forward ends of the slack take-up levers 36 extend beyond the supporting frame and are provided with guide eyes 37 through which the warp cords y are pulled. At their inner ends, these levers 36 are yieldingly and normally held downward in engagement with a stop bar 39 by means of coiled springs 40 anchored to the rear ends of the lovers 36 and the intermediate tie bar 5. The stop bar 39 is rigidly secured to the top inner edge of the tie bar 3 and is preferably half round in cross section.

There-is one tension device for each pair of slack take-up devices. Each tension device is in the form of a rearwardly projecting levers-1 pivotally mounted on the shaft 37 between the cooperating pair of slack take-up levers 36. The levers 41 are provided, near their free or rear ends, with transversely extended presser heads 42 that are normally and yieldingly held in engagement with the stop bar 39 by means of coiled springs 43. The springs 43 are anchored to the free ends of the levers 41 and the intermediate tie bar 5. The warp cords 3 are frictionally pressed onto the stop bar 39 by means of the presser heads 42, of the ten- I sion devices, and are properly guided there between by means of shallow notches 44 cut in the top of the stop bar 39.

A spool supporting shelf 45 is secured to the rear of the posts 1 by means of brackets l 46. Warp carrying spools g are loosely and rotatively mounted upon the shelf 45. These spools 3 are arranged in pairs, one upon the other, and in two rows extending the length of the shelf 45. The two rows of spools y are offset, one from the other, in order to permit the warp cords 3 from the outer row of spools y to pass between the inner row of spools, as best shown in Fig. 3. Through the axial perforations of each pair of spools 1 is passed a vertically extended headed bolt 47 having its lower end loosely and rotatively mounted in a perforation 48 in the shelf 45. By thus mounting the spools 3 each pair is free to rotate, one upon the other, and upon. the shelf 45. By reference to Fig. 3, it will be noted that the warp cords 3 are unwound from each pair of spools in reverse directions. By thus unwinding t-he warp cords 3 from the spools, the spools of each pair are rotated in reverse directions while in frictional engagement, so that the unwinding of the warp cord from one spool tends to wind up the warp cord on the other spool. This action will prevent the warp cords from being unwound too freely from the spools and will also take up the slack.

As already stated, the slats are fed by hand between the upper portions of the guide bars 11 and over the upwardly diverging portions of the warp threads or cords g To keep these slats even at the far side of the'machine from the person feeding the slats, they are fed against an adjustable stop shown in Fig. 10. This adjustable stop comprises a stop 49. This slat stop 49 is arranged for interlocking engagement with the inner flange of the outer presser bar 7 and is adapted to be held in various different adjustments thereon, by means of a set screw 50.

To automatically trim the slats at the side of the machine adjacent to which the operator stands, we provide the shearing device best shown in detail in Fig. 9. This shearing device comprises a pair of shear ing jaws 51 and 52, pivotally connected at 53 and having cooperating shearing blades 54. The jaw 51 is rigidly secured to the adj acent end of the presser bar 7 by a suitable nut and bolt 55. A. spring 56 interposed between projecting portions of the jaws 51 and 52, tends to hold the shearing blades 54: separated. A slot and screw connection 57 limits the movements of the jaw 52 in re spect to the relatively fixed screw 51. The said jaw 52 has a cam surface 58 that is arranged to be engaged by a roller 59 mounted on a bracket 60 carried by one end of the vertically movable bar 15.

The operation of the machine may be briefly stated as follows: The free ends of the warp cords y as they are unwound from the spools are first passed under the tension devices, then through the eyes 37 in the take-up devices. They are then passed through the eyes 28 and 27 on the warp guiding arms 33. After the warp cords y have been passed through the eyes 27, the ends of each pair are tied together and are then in position to have the first slat 1 placed thereupon. The slats 3 are fed by hand, endwise between the upper portions of the guide rods 1.1. By moving the operating lever 19 from the right to the left, with respect to Fig. 2, the packer heads 12 are moved downward, through the several connections, and the first slat 3 is thereby forced downward between the lower portions of the guide rods 11 in a position to permit the free ends of the warp carrying arms 24: to pass thereover. While the operating lever 19 is still in this position, the operating lever 3% is then moved from the left to the right with respect to Fig. 2, thereby alternating the positions of the warp carrying arms 24, as shown in Fig. 2. By this movement of the warp carrying arms 24, the warp cords y are passed over the upper edge of the first slat 3 After this is done, the operating lever 19 is returned to its normal position. The machine is now in position to receive the second slat y. After the sec ond slat is fed to the machine, as above described, the packer heads 12 are moved downward, thereby pressing the second slat into close engagement with the first slat and by the same movement, the slats 3 are moved downward between the guide rods 11. The slats are heldin this position by the packer heads 12, while the warp cords 9' are being passed around the second slat in a manner previously described.

It has been noted that when the lever 19 is forced forward, or toward the left, in respect to Fig. 2, the packer heads 12 move the slats downward between the guide rods 11. When the said lever 19 is moved backward to the position shown in Fig. 2, and the bar 15 and packer heads 12 are again raised, the roller 59, acting on the cam surface 58, of the shearing jaw 52, moves the same and causes the shearing blades 54; to cut off the projecting end of the slat that has just been fed downward between the same.

Obviously, the purpose of making the slat stop 49 adjustable, is to set the machine for making curtains of difierent width. Of course, in the use of the machine for making curtains narrower than illustrated in Fig. 1, only those guide arms 24 which are at the right of said stop 49 would be supplied with l the warp thread or cord.

What we claim is:

1. In a machine of the kind described, the combination with a slat guide comprising a pair of bars having approximately parallel slat engaging surfaces, one of which bars is mounted for limited movements toward and from the other, an adjustable spring device yieldingly pressing said movable bar to ward the cooperating bar, a packer head cooperating with said slat guide, means for operating said packer head to deliver the slats between said bars, reversely-acting warp guiding devices, and means for alternating said warp guiding devices while the last deposited slat is frictionally held between said guide bars.

2. In a machine of the kind described, the combination with a slat guide, reversely acting warp guiding devices, means for alternat-ing the said warp guiding devices, a tension device and slack take-up devices for the warp, on either side of the said tension device.

3. In a machine of the kind described, the combination with a pair of presser bars, one of which is yieldingly mounted in respect to the other, and slat guides secured in respect to said presser bars, of a packer head cooperating with said slat guides, means for operating said packer head, reversely acting warp guiding arms, means for simultaneously alternating said Warp guiding arms, including a rock shaft and connections to said arms, a slack take-up device, and a tension device operative on the Warp, substantially as described.

4. In a machine of the kind described, the combination With a slat guide comprising a pair of bars having parallel slat engaging surfaces, one of Which bars is yieldingly mounted for straight line approaching and receding movements in respect to the other, of a packer head cooperating With said slat guide, means for operating said packer head, reversely acting Warp guiding devices, and means for alternating said Warp guiding devices While the last deposited slat is frictionally held between the said guide bars.

In testimony whereof We afliX our signatures in the presence of two Witnesses.

EDWARD L. MOONEY. ZACHARY E. RUSSELL. \Vitnesses:

HARRY D. KILGORE, F. D. MERCHANT.

Copies of this patent may be obtained tor five cents each, by addressing the Commissioner of Patents, Washington, D C. 

